Rolling-mill.



J. R. GEORGE. ROLLING MILL.

APPLICATION FILED BEPTJQ, 1906.

926,863. v Patented July 6,1909.

F1 .5. 19 WLL messes S Inu em t o1- TUB? clerome or e R g D em i I- {iorngs UNITED STATES PATENT OFFICE.

JEROME R. GEORGE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO MORGAN CONSTRUC- TION COMPANY, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

ROLLING-MILL,

Specification Letters Patent.

Patented July 6, 19o9.

' Application filed. September 20, 1905. Serial No. 279,256.

To all whom it may concern:

Be it known that LJnRoMn R. Gnonon, a citizen of the United States, residing at l/Vorcester, in the county of Worcester and Commonwealth of Massachusetts, have in vented a new and usetullmprovement in Rolling-Mills, of which the following is a specification accompanied by drawings formingz a. part of the same, in which igure 1 represents a plan view of a rolling mill embodying my invention. Fig. .2 is an end elevation of the same, and Fig. 3 is a cross section on line 3 -33, Fig. 1, of the curvedjrepeater 19'. 1

Si 'lar reference letters and figures refer to similar parts in the different views.

1 My nesent invention relatesto that class of rolling mills known as continuous and it has for its ohject'to increase the efficiency 2 of a rolling mill of this class, both as regards the amount and character of product, and it consists in the construction and arrangement of arts as hereinafter described and set fort inthe annexed claims.

Referring to the accompanying drawings A denotes aningot or billet heating furnace,

1, 2, 3, 4, 5 and 6 denote a series of rolls arranged in alinement for the continuous rolling of the ingot or billet and forming a continuous train. similar to that now employed in mills of this class and driven from a driving shaft? by a series of bevel gears arranged to give the relative circumferential speed to each succeeding air ot'rolls to provide For the elongation o the metal as it is successively compressed between the rolls, and delivering the rodto a repeater 8 having a semicircular bend Oby which the direction. of the rod is reversed and delivered from the month 10 of the repeater upon an elevated floor 11. The rod is then returned upon itself and passed throu h a seriesof rolls 12 12 forming ,a 100' on t c floor 11 which varies in size accor ing to the overfecd of the metal as indicated by the broken lines 13, 14. The rod as it leaves the series of rolls 12, 12,

is delivered to a second semicircular re eater 15 which reverses the movement of t 10 rod and delivers it again upon the elevated floor 11, where it is conducted through a air of rolls16 and 17 and delivered toa thirc semicircular repeater 18 by which the movement of the rod is again reversed and the rod is delivered to a curved repeater 19 by which the rod is conducted to the rolls 2Q, 21. The short semicircular repeater 19 has the central portion 22 of its outer wall beveled to enable the loo caused by the overfeed of the rod to be pus ed out of the repeater on to the floor 11. The broken lines 23 and 24 represent the position of loops on the floor 11 as the rod is delivered from the repeaters 15 and 18 respectively. From the rolls 21 the rod is taken to any one of the reeling mechanisms 25.

My continuous mill as above described comprises a multiplicity of sections, in the present instance four in number, and between each sectionthe overfeed of the rod is enabled to expend itself in unconfined loops upon the floor 11, several loops being all formed upon the same floor and upon the same side of the several sections, leaving the opposite side of the sectionsentirely free.

lhe series of rolls 1 to 6, and series of rolls 12, 12 I term reducing sections, and the series of rolls 16, 17, and 20, 21-, I term finishing sections. I arrange to drive the first pair of rolls in each of the finishing sections at the sameispeed as the last pair of rolls in the next'ipireceding section, for example, the pair of to Is 1.6 in tho first finishing section is coupled to and driven at the same .s ")ced as the last pair of rolls 12*in the prccedin reducing section, and the firstpair of rol s 20 in the second finishingsection is coupled to and driven at the same speed as the last pair of rolls 17 in the preceding finishing section. The pair of rolls 16 are driven through intermittent connecting mechanism by a belt 26 from an engine or other source of power, not

shown, and the pairs ofrolls 17 and 20 are driven by bolts 27 and 28 at a higher rate of siced, and the pair of rolls 21 are driven t rough the same belts, but at a still higher seed, the driven )ulley 29 being smaller t an the driven pulley' 30, which drive rcspcctively the shafts 31 and'32. The last pairs of rolls 17 and 21 in each of the finishing sections is, however, smaller imdiameter than the initial pairs of rolls 16 and 20 in each finishing section, the reduction in diamcterof these rolls being compensated for by their increased angular velocity, so that the mains greater than that of rolls 16 and 20. The reduction in diameter of the last pairs of finishing rolls in each; of the finishing sec' tions enables the desired size of the rod to be secured with greater accuracy. The circumferential speed of the last pair of rolls in each finishing section is slightly greater than the circumferential speed of the first pair of rolls in the same finishing section, due to the elongation of the metal, so that the second pair of rolls will take up the metal as fast as delivered by the first pair of rolls in the section, thereby reventing a loop being formed by the overieed of the first pair of rolls. When the entire number of passes in the finishing mill are not required for the reduction of the metal, a portion of the rolls can be omitted, for example, pairs of rolls 12 17 and 21, or either of them, can be se arated so they will not act on the metal passing through the mill, leavin the entire reduction to be accomplishe by the pairs of rolls 12, 16 and 20.

What I claim as my-invention and desire to secure by Letters Patent is nation of a series of pairs of rolls forming the reducing portion of the mill, said rolls being arranged in two separate sections, with the second section out of alinement with the first section, and a semicircular re eater by which a rod is conducted from sai first section and around the delivery end of said second section, and means for supporting the overfeed as the rod is taken from said repeater to the receiving end of said section.

2. In a continuous rolling mill, the combination with two series of pairs of rolls laced out'of alinement with each other, 0 a repeater by which the metal is conducted from the delivery end of the first series around the delivery end of the second series, and a suporting floor for-the overfeed at the receiving end of the second series.

3. In a continuous rolling mill, the combination with a series of reducing rolls arranged in airs for the consecutive reduction of a T0 of a finishing section comprising two airs of rolls and a semicircular repeater eading from the last pair of rolls in said series'of reducing rolls around the last pair of rolls in said finishing section.'

l. In a continuous rolling mill, the combination of a series of rolls arranged in separate sections, with the rolls in each of said sections out of alinement with theremaining sections, a series of semicircular repeaters leading from the delivery pair of rolls of one section around the delivery pair of rolls of the next succeeding section, and a floor for the support of the overfeed in front of the receiving pairs of rolls in each section.

5. In a rolling mill, the combination with a series of pairs of reducing rolls for the conductin a rod from the reducing to the finishing ro ls, and "around said finishing rolls, whereby the movement of the rod is in the same direction, through both of said finishing and said reducing rolls. W

6. In a continuous'rolling mill, the combination of a series of pairs of rolls for the consecutive reduction of a rod moving in the same direction through each pair of rolls, said pairs of rolls arranged in sections, and means for conducting a rod from the delivery end of one section around the delivery end of the next succeeding section to enter on the opposite side of a pair of rolls in said succeeding section.

7. In a continuous rolling mill, the combination of a series of pairs of rolls for the conseoutive reduction of a rod, said series being arranged in parallel sections with their axes out of alinement with each other, means for conducting a rod from the delivery end of one section around the next succeeding section to the receiving pair of rolls therein, whereby the movement of the rod is in the same direction through the several sections, and means for supporting the overfeed between the sections. 1

8. In a continuous rolling mill, the combination of a series of rolls for the consecutive reduction of a rod arranged in sections, out of alinement with each other, semicircular repeaters leading from the delivery pair of ro ls in one section around the delivery pair of rolls in the next succeeding section, whereby the movement of the rod is reversed, means for supporting a semicircular loop of the rod between said repeaters and the receiving pair of rolls in said sections.

9. In a continuous rolling mill, the combination of a series of finishing rolls arranged in sections, comprising at least two pairs of rolls in each section, means for rotating the first pair of rolls in each section at the same circumferential speed as the last air of rolls in the preceding section, but at a ess circumferential speed than the last pair of rolls in successive sections of finishing rolls having at least two'pairs of rolls in each section, with the first pair of rolls in each section coupled tion, whereby the movement of the rod is reto the last pair of rolls in the next preceding versed. section, means for driving the successive Dated this 18th day of September 1905.

coupled pairs of rolls at different angular JEROME li. GEORGE. 5 velocities, and means for conducting a rod Witnesses:

from the delivery end of one section around PENELOPE COMBERBACH,

the delivery end of the next succeeding sec- RUFUS B. FOWLER. 

